Rashi on Leviticus 11:41/רש"י על ויקרא י״א:מ״א

1‎‎‎‏על הארץ ‎ושרץ THAT CREEPETH ON THE EARTH — the law is worded thus in order to exclude the insects in peas and in beans and the mites in lentils, for, you see, these do not move about on the ground but inside the food, but so soon as they have emerged into the air and have moved about they become prohibited to be eaten (Sifra, Shemini, Chapter 12 1; Chullin 67b).

2לא יאכל IT SHALL NOT BE EATEN — This passive form; it shall not become the object of eating, is used to make the liability to punishment fall upon the one who gives these abominable things to others (to‎ minors) to eat just the same as upon him who himself eats them (Sifra, Shemini, Chapter 12 1; cf. Rashi on v. 13). — Only that is called שרץ which is low and has short feet and which seems only to progress by a creeping movement.